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#include "config.h"
#if EXCLUDE_GENA == 0
#include "gena.h"
#include "gena_device.h"
#include "gena_ctrlpt.h"

#include "httpparser.h"
#include "httpreadwrite.h"
#include "statcodes.h"
#include "unixutil.h"

/************************************************************************
* Function : error_respond									
*																	
* Parameters:														
*	IN SOCKINFO *info: Structure containing information about the socket
*	IN int error_code: error code that will be in the GENA response
*	IN http_message_t* hmsg: GENA request Packet 
*
* Description:														
*	This function send an error message to the control point in the case
*	incorrect GENA requests.
*
* Returns: int
*	UPNP_E_SUCCESS if successful else appropriate error
***************************************************************************/
void
error_respond( IN SOCKINFO * info,
               IN int error_code,
               IN http_message_t * hmsg )
{
    int major,
      minor;

    // retrieve the minor and major version from the GENA request
    http_CalcResponseVersion( hmsg->major_version,
                              hmsg->minor_version, &major, &minor );

    http_SendStatusResponse( info, error_code, major, minor );
}

/************************************************************************
* Function : genaCallback									
*																	
* Parameters:														
*	IN http_parser_t *parser: represents the parse state of the request
*	IN http_message_t* request: HTTP message containing GENA request
*	INOUT SOCKINFO *info: Structure containing information about the socket
*
* Description:														
*	This is the callback function called by the miniserver to handle 
*	incoming GENA requests. 
*
* Returns: int
*	UPNP_E_SUCCESS if successful else appropriate error
***************************************************************************/
void
genaCallback( IN http_parser_t * parser,
              IN http_message_t * request,
              INOUT SOCKINFO * info )
{
    xboolean found_function = FALSE;

    if( request->method == HTTPMETHOD_SUBSCRIBE ) {
#ifdef INCLUDE_DEVICE_APIS
        found_function = TRUE;
        if( httpmsg_find_hdr( request, HDR_NT, NULL ) == NULL ) {
            // renew subscription
            gena_process_subscription_renewal_request
            ( info, request );
	} else {
            // subscribe
            gena_process_subscription_request( info, request );
	}
        UpnpPrintf( UPNP_ALL, GENA, __FILE__, __LINE__,
            "got subscription request\n" );
    } else if( request->method == HTTPMETHOD_UNSUBSCRIBE ) {
        found_function = TRUE;
        // unsubscribe
        gena_process_unsubscribe_request( info, request );
#endif
    } else if( request->method == HTTPMETHOD_NOTIFY ) {
#ifdef INCLUDE_CLIENT_APIS
        found_function = TRUE;
        // notify
        gena_process_notification_event( info, request );
#endif
    }

    if( !found_function ) {
            // handle missing functions of device or ctrl pt
            error_respond( info, HTTP_NOT_IMPLEMENTED, request );
    }
}
#endif // EXCLUDE_GENA

